business Itaewon a burger joint , attracting different the nationality of the customer . Originally happy and peaceful atmosphere with the sudden killings broke . H large drop out students in Zhao Bute 's body in the toilet was found with nine stab wounds in the chest and body . Scene, two claiming to be eyewitnesses witness hybrid Pearson ( Jang Geun Suk ornaments ) and Korean living in the United States Alex , both the police found a murder suspect . Park District Attorney ( decoration) Cheng Jin Young was appointed as the person in charge of investigating the case the truth , by the intervention of the U.S. Army Crime Investigation Team , Pearson is considered as murder evidence in court acquitted desperation, Park, prosecutors can only prosecute another one suspects Alex , which is the origin of the Prosecutor father hired a famous lawyer to defend for his son . The truth of the matter is what is the ?